EP3439402B1 - Procédé et appareil de transmission de données - Google Patents

Procédé et appareil de transmission de données Download PDF

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Publication number
EP3439402B1
EP3439402B1 EP17788643.9A EP17788643A EP3439402B1 EP 3439402 B1 EP3439402 B1 EP 3439402B1 EP 17788643 A EP17788643 A EP 17788643A EP 3439402 B1 EP3439402 B1 EP 3439402B1
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EP
European Patent Office
Prior art keywords
subframe
network node
terminal
uplink
control information
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Application number
EP17788643.9A
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German (de)
English (en)
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EP3439402A4 (fr
EP3439402A1 (fr
Inventor
Qi Liu
Yi Zhang
Zhenfei Tang
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of EP3439402A4 publication Critical patent/EP3439402A4/fr
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H04W72/044—Wireless resource allocation based on the type of the allocated resource
    • H04W72/0446—Resources in time domain, e.g. slots or frames
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/21—Control channels or signalling for resource management in the uplink direction of a wireless link, i.e. towards the network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/04—Wireless resource allocation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal

Definitions

  • Embodiments of the present invention relate to communications technologies, and in particular, to a data transmission method and apparatus.
  • Time division duplex (Time Divided Duplex, TDD for short) is one of full-duplex communications technologies used in a mobile telecommunication system.
  • TDD Time Division duplex
  • uplink data and downlink data are transmitted in different timeslots on a same carrier. That is, the uplink data and the downlink data are transmitted at different times.
  • a frame structure of the TDD mode includes an uplink subframe and a downlink subframe.
  • the uplink subframe is used to transmit the uplink data
  • the downlink subframe is used to transmit the downlink data.
  • FIG. 1 is a schematic diagram of uplink data transmission in the prior art.
  • UL represents an uplink subframe
  • DL represents a downlink subframe.
  • the uplink data cannot be transmitted, and can be sent only when a next uplink subframe (UL) arrives.
  • a data volume of a downlink service is usually greater than a data volume of an uplink service. Therefore, there is a relatively small quantity of uplink subframes. For some low-latency services, a wait time for uplink data transmission is quite long, greatly affecting quality of service (Quality of Service, Qos for short) satisfaction of the low-latency services.
  • a communication method of a base station supporting TDD includes transmitting, to a terminal, first information including at least one of a flag indicating whether flexible subframes are used and an indicator indicating a candidate flexible subframe set to an uplink subframe; transmitting, to the terminal, second information including a switch flag indicating whether to use the candidate flexible subframe as a downlink subframe; and transmitting, to the terminal, when the candidate flexible subframe is indicated to be used as the downlink subframe, the candidate flexible subframe as the downlink subframe.
  • EP 2 802 091 A1 relates to a method for communicating based on a flexible TDD configuration by introducing flexible subframes, selectively usable as a downlink or uplink subframe in a manner avoids a transition from a (non-)flexible downlink subframe n to a (non-)flexible uplink subframe n+1.
  • the invention allows reducing the number and types of uplink transmissions that would be pending for a flexible subframe, by defining HARQ uplink feedback timings based on the HARQ uplink feedback timings for the static TDD configurations such that HARQ uplink feedback is never transmitted in a flexible subframe, and also by releasing configurations for periodic uplink transmissions such as, SPS-scheduled uplink data transmissions, periodic CSI report, uplink sounding, random access, and scheduling requests.
  • EP 1 799 001 A1 describes a method assigning resources of the frequency bands that are separated from one another.
  • the resources in frequency division duplex (FDD) are allocated for transmission in downward direction.
  • the resources for transmission according to FDD are allocated opposite to the specific transmission direction, in a time period, for assigning the resources for the transmission devices in the respective frequency bands.
  • a network device with a control mechanism for allocating the resources and a subscriber station for operation in a radio communication system are described.
  • Embodiments of the present invention provide a data transmission method and apparatus, so as to avoid interference caused by downlink data to uplink data and ensure QoS satisfaction of a low-latency service.
  • FIG. 2 is a schematic diagram of an application scenario of a data transmission method according to an embodiment of the present invention.
  • the scenario includes a network node 1, a network node 2, a network node 3, a terminal 4, and a terminal 5.
  • Main functions of a network node are scheduling and allocating an air interface resource, and sending a control message and data to a terminal on a specified air interface resource.
  • the control message includes information about an air interface resource allocated to a user of each terminal.
  • Main functions of the terminal are receiving and sending data based on the control message sent by the network node, and feeding back some control messages to the network node. For example, the terminal feeds back messages such as a HARQ ACK/NACK, a CQI, and an SRS to the network node.
  • An interface between the network node and the terminal is an air interface, and an interface between terminals is also an air interface.
  • Network nodes may communicate with each other by using an X2 interface or an air interface.
  • the data transmission method according to this embodiment of the present invention is mainly applied to a low-latency high-reliable service, for example, an ultra-reliable/low-latency machine type communications (Ultra-reliable and low latency Machine Type Communications, uMTC for short) service, so as to resolve a prior-art technical problem that a wait time for transmitting uplink data for a low-latency service is quite long, and QoS satisfaction of the low-latency service is greatly affected.
  • a low-latency high-reliable service for example, an ultra-reliable/low-latency machine type communications (Ultra-reliable and low latency Machine Type Communications, uMTC for short) service
  • FIG. 3 is a flowchart of a data transmission method according to Embodiment 1 of the present invention. As shown in FIG. 3 , the method includes the following steps.
  • Step 101 A network node receives an uplink data transmission request sent by a terminal, where the uplink data transmission request is used to request the network node to allocate an uplink transmission resource to the terminal.
  • the terminal may be a terminal device such as a mobile phone, a computer, a tablet computer, or a smartwatch.
  • the terminal sends the uplink data transmission request to the network node.
  • the network node allocates an uplink transmission resource to the terminal according to the uplink data transmission request.
  • Step 102 The network node allocates an uplink transmission resource of a first subframe to the terminal according to the uplink data transmission request, where the first subframe is a downlink subframe.
  • the network node allocates the uplink transmission resource of the first subframe to the terminal.
  • the terminal may carry an inter-subframe space N in the uplink data transmission request, to request the network node to allocate, in an Nth subframe that is after a subframe in which the uplink data transmission request is received, an uplink transmission resource to the terminal.
  • Step 103 The network node sends scheduling control information to the terminal, where the scheduling control information is used to instruct the terminal to send data on the uplink transmission resource of the first subframe.
  • the scheduling control information may include attribute information of the uplink transmission resource, for example, a quantity of resource blocks (Resource Block, RB for short), a modulation scheme, or a transport block size (Transport Block Size, TBS for short).
  • the terminal After receiving the scheduling control information, the terminal sends data on the uplink transmission resource of the first subframe based on content of the scheduling control information.
  • Step 104 The network node stops sending data in the first subframe, and receives, on the uplink transmission resource of the first subframe, data sent by the terminal.
  • the first subframe is a downlink subframe
  • the network node needs to stop sending data in the first subframe, so as to avoid interference caused by downlink data to uplink data, so that the network node can receive correct uplink data in the first subframe.
  • the network node receives the uplink data transmission request sent by the terminal for requesting the network node to allocate an uplink transmission resource to the terminal, allocates the uplink transmission resource of the first subframe to the terminal according to the uplink data transmission request, and sends the scheduling control information to the terminal, so that the terminal sends data on the uplink transmission resource of the first subframe.
  • the network node stops sending data in the first subframe, and receives, on the uplink transmission resource of the first subframe, data sent by the terminal.
  • a transmission resource of a downlink subframe may be preempted, thereby reducing a wait time for transmitting uplink data.
  • the network node stops sending data in the downlink subframe, thereby avoiding interference caused by downlink data to uplink data and ensuring QoS satisfaction of a low-latency service.
  • FIG. 4 is a flowchart of a data transmission method according to Embodiment 2 of the present invention.
  • a first subframe is a downlink subframe
  • a network node further sends control information to a network node in a neighboring cell or a network node in a macro cell, so that the network node in the neighboring cell or the network node in the macro cell stops sending downlink data in the first subframe.
  • the method includes the following steps.
  • Step 201 A network node receives, in a third subframe, an uplink data transmission request sent by a terminal, where the third subframe is a subframe before a second subframe, and an inter-subframe space between the third subframe and a first subframe is k.
  • k is a positive integer greater than 1.
  • the second subframe is a subframe in which scheduling control information is sent. If the third subframe is numbered n, the first subframe is numbered (n+k). If the network node receives, in subframe n, the uplink data transmission request sent by the terminal, the network node allocates an uplink transmission resource of subframe (n+k) to the terminal.
  • Step 202 The network node allocates an uplink transmission resource of the first subframe to the terminal according to the uplink data transmission request, where the first subframe is a downlink subframe.
  • Step 203 The network node sends scheduling control information to the terminal in the second subframe, where the second subframe is a subframe before the first subframe.
  • the second subframe is a subframe between the third subframe and the first subframe.
  • the second subframe may be subframe 2 or subframe 3.
  • Step 204 The network node sends first control information to a network node in a neighboring cell, where the first control information is used to instruct the network node in the neighboring cell to stop sending data in the first subframe.
  • the network node when the network node sends data in a downlink subframe, a transmit signal is quite strong, and causes great interference to uplink reception. Therefore, no data sent by the terminal can be correctly received.
  • the network node sends the first control information to the network node in the neighboring cell, so that the network node in the neighboring cell stops sending data in the first subframe.
  • a cell in which the network node is located is covered by a macro cell, the method may further include step 205.
  • Step 205 A cell in which the network node is located is covered by a macro cell, the network node sends second control information to a network node in the macro cell, where the second control information is used to instruct the network node in the macro cell to stop sending data in the first subframe.
  • Heterogeneous Network HetNet for short.
  • the macro cell covers a plurality of micro cells. That is, a plurality of micro base stations are deployed in a coverage area of a macro base station. Each micro base station serves a user within a specific area. Coverage of the macro base station overlaps with coverage of the micro base stations. If the cell in which the network node in this embodiment is located is a micro cell and is covered by the macro cell, the network node further needs to send the second control information to the network node in the macro cell, so that the network node in the macro cell stops sending data in the first subframe.
  • HetNet heterogeneous Network
  • step 203 there is no specific time sequence restriction on step 203, step 204, and step 205.
  • Step 206 The network node stops sending data in the first subframe, and receives, on the uplink transmission resource of the first subframe, data sent by the terminal.
  • the network node receives, in the third subframe, the uplink data transmission request sent by the terminal, allocates the uplink transmission resource of the first subframe to the terminal according to the uplink data transmission request, and sends the scheduling control information to the terminal in the second subframe that is before the first subframe.
  • the network node may further send the first control information to the network node in the neighboring cell, so that the network node in the neighboring cell stops sending data in the first subframe. If the cell in which the network node is located is covered by the macro cell, the network node may further send the second control information to the network node in the macro cell, so that the network node in the macro cell stops sending data in the first subframe.
  • FIG. 5 is a flowchart of a data transmission method according to Example 3 useful for understanding the present invention.
  • a terminal requests a network node to allocate an uplink transmission resource, and sends uplink data on an uplink transmission resource of a first subframe based on scheduling control information sent by the network node.
  • the method includes the following steps.
  • Step 301 A terminal sends an uplink data transmission request to a network node, where the uplink data transmission request is used to request the network node to allocate an uplink transmission resource to the terminal.
  • the terminal may be a terminal device such as a mobile phone, a computer, a tablet computer, or a smartwatch.
  • the terminal sends the uplink data transmission request to the network node.
  • the network node allocates an uplink transmission resource to the terminal according to the uplink data transmission request.
  • Step 302 The terminal receives scheduling control information sent by the network node.
  • the scheduling control information is used to instruct the terminal to send data on an uplink transmission resource of a first subframe.
  • the scheduling control information may include attribute information of the uplink transmission resource, for example, a quantity of resource blocks (Resource Block, RB for short), a modulation scheme, or a transport block size (Transport Block Size, TBS for short).
  • the terminal After receiving the scheduling control information, the terminal sends data on the uplink transmission resource of the first subframe based on content of the scheduling control information.
  • Step 303 The terminal sends data on an uplink transmission resource of a first subframe based on the scheduling control information, where the first subframe is a downlink subframe.
  • the terminal can send data on the uplink transmission resource of the first subframe, thereby reducing a wait time for sending uplink data.
  • Step 304 The terminal stops receiving data in the first subframe.
  • the terminal stops receiving data in the first subframe.
  • the terminal sends the uplink data transmission request to the network node, so that the network node allocates an uplink transmission resource to the terminal, receives the scheduling control information sent by the network node, and sends data on the uplink transmission resource of the first subframe based on the scheduling control information.
  • the terminal stops receiving data in the first subframe. Regardless of whether the first subframe is a downlink subframe, the terminal can send data on the uplink transmission resource of the first subframe. This reduces a wait time for sending uplink data and ensures QoS of a low-latency service.
  • the receiving, by the terminal, scheduling control information sent by the network node includes: receiving, by the terminal in a second subframe, the scheduling control information sent by the network node, where the second subframe is a subframe before the first subframe.
  • the sending, by a terminal, an uplink data transmission request to a network node includes: sending, by the terminal, the uplink data transmission request to the network node in a third subframe, where the third subframe is a subframe before the second subframe, and an inter-subframe space between the third subframe and the first subframe is k.
  • k is a positive integer greater than 1.
  • the third subframe is numbered n
  • the first subframe is numbered n+k.
  • the second subframe is a subframe between subframe n and subframe (n+k). If the network node receives, in the subframe n, the uplink data transmission request sent by the terminal, the network node allocates an uplink transmission resource to the terminal in the subframe (n+k). Regardless of whether the subframe (n+k) is a downlink subframe, the network node allocates an uplink transmission resource to the terminal in the subframe (n+k). This reduces a wait time for transmitting uplink data and ensures QoS of a low-latency service.
  • the apparatus includes a receiving module 11, an allocation module 12, a sending module 13, and a processing module 14.
  • the receiving module 11 is configured to receive an uplink data transmission request sent by a terminal, where the uplink data transmission request is used to request a network node to allocate an uplink transmission resource to the terminal.
  • the allocation module 12 is configured to allocate an uplink transmission resource of a first subframe to the terminal according to the uplink data transmission request, where the first subframe is a downlink subframe.
  • the sending module 13 is configured to send scheduling control information to the terminal, where the scheduling control information is used to instruct the terminal to send data on the uplink transmission resource of the first subframe.
  • the processing module 14 is configured to: control the sending module 13 to stop sending data in the first subframe, and control the receiving module 11 to receive, on the uplink transmission resource of the first subframe, data sent by the terminal.
  • the apparatus according to this embodiment may be configured to execute the technical solutions of the method embodiment shown in FIG. 3 , implementation principles and technical effects thereof are similar to those in the method embodiment, and details are not described herein again.
  • the sending module 13 is further configured to send first control information to a network node in a neighboring cell, where the first control information is used to instruct the network node in the neighboring cell to stop sending data in the first subframe.
  • a cell in which the data transmission apparatus is located is covered by a macro cell
  • the sending module 13 is further configured to send second control information to a network node in the macro cell, where the second control information is used to instruct the network node in the macro cell to stop sending data in the first subframe.
  • the sending module 13 is specifically configured to send the scheduling control information to the terminal in a second subframe, where the second subframe is a subframe before the first subframe.
  • the receiving module 11 is specifically configured to receive, in a third subframe, the uplink data transmission request sent by the terminal, where the third subframe is a subframe before the second subframe, an inter-subframe space between the third subframe and the first subframe is k, and k is a positive integer greater than 1.
  • the apparatus according to this embodiment may be configured to execute the technical solutions of the method embodiment shown in FIG. 4 , implementation principles and technical effects thereof are similar to those in the method embodiment, and details are not described herein again.
  • FIG. 7 is a schematic structural diagram of a data transmission apparatus according to Example 5 useful for understanding the present invention.
  • the apparatus includes a sending module 21, a receiving module 22, and a processing module 23.
  • the sending module 21 is configured to send an uplink data transmission request to a network node, where the uplink data transmission request is used to request the network node to allocate an uplink transmission resource to the terminal.
  • the receiving module 22 is configured to receive scheduling control information sent by the network node.
  • the sending module 21 is further configured to send data on an uplink transmission resource of a first subframe based on the scheduling control information, where the first subframe is a downlink subframe.
  • the processing module 23 is further configured to: control the receiving module 22 to stop receiving data in the first subframe.
  • the apparatus according to this example may be configured to execute the technical solutions of the method example shown in FIG. 5 , implementation principles and technical effects thereof are similar to those in the method example, and details are not described herein again.
  • the receiving module 22 is specifically configured to receive, in a second subframe, the scheduling control information sent by the network node, where the second subframe is a subframe before the first subframe.
  • the sending, by the sending module 21, an uplink data transmission request to a network node specifically includes: sending, by the sending module 21, the uplink data transmission request to the network node in a third subframe, where the third subframe is a subframe before the second subframe, an inter-subframe space between the third subframe and the first subframe is k, and k is a positive integer greater than 1.
  • FIG. 8 is a schematic structural diagram of a network node according to Embodiment 6 of the present invention.
  • the network node includes a receiver 31, a processor 32, and a transmitter 33.
  • the receiver 31 is configured to receive an uplink data transmission request sent by a terminal, where the uplink data transmission request is used to request a network node to allocate an uplink transmission resource to the terminal.
  • the processor 32 is configured to allocate an uplink transmission resource of a first subframe to the terminal according to the uplink data transmission request, where the first subframe is a downlink subframe.
  • the transmitter 33 is configured to send scheduling control information to the terminal, where the scheduling control information is used to instruct the terminal to send data on the uplink transmission resource of the first subframe.
  • the processor 32 is further configured to control the transmitter 33 to stop sending data in the first subframe, and control the receiver 31 to receive, on the uplink transmission resource of the first subframe, data sent by the terminal.
  • the first subframe is a downlink subframe
  • the transmitter 33 is further configured to send first control information to a network node in a neighboring cell, where the first control information is used to instruct the network node in the neighboring cell to stop sending data in the first subframe.
  • a cell in which the network node is located is covered by a macro cell
  • the transmitter 33 is further configured to send second control information to a network node in the macro cell, where the second control information is used to instruct the network node in the macro cell to stop sending data in the first subframe.
  • the transmitter 33 is specifically configured to send the scheduling control information to the terminal in a second subframe, where the second subframe is a subframe before the first subframe.
  • the receiver 31 is specifically configured to receive, in a third subframe, the uplink data transmission request sent by the terminal, where the third subframe is a subframe before the second subframe, an inter-subframe space between the third subframe and the first subframe is k, and k is a positive integer greater than 1.
  • the processor 32 may be a general purpose processor, including a central processing unit (Central Processing Unit, CPU for short), a network processor (Network Processor, NP for short), or the like; and may alternatively be a digital signal processor (Digital Signal Processing DSP for short), an application-specific integrated circuit (Application Specific Integrated Circuit, ASIC for short), a field programmable gate array (Field-Programmable Gate Array, FPGA for short), or another programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component.
  • CPU Central Processing Unit
  • NP Network Processor
  • DSP Digital Signal Processing DSP for short
  • ASIC Application Specific Integrated Circuit
  • FPGA Field-Programmable Gate Array
  • the network node may further include a memory.
  • the memory is coupled with the processor, and is configured to store an operating system, program code, and data.
  • the memory may include a random access memory (random access memory, RAM for short), or may include a nonvolatile memory (non-volatile memory), for example, at least one magnetic disk storage.
  • the network node according to this embodiment may be configured to execute the technical solutions of the method embodiment shown in FIG. 3 or FIG. 4 , implementation principles and technical effects thereof are similar to those in the method embodiment, and details are not described herein again.
  • FIG. 9 is a schematic structural diagram of a terminal according to Example 7 useful for understanding the present invention.
  • the terminal includes a transmitter 41, a processor 42, and a receiver 43.
  • the transmitter 41 is configured to send an uplink data transmission request to a network node, where the uplink data transmission request is used to request the network node to allocate an uplink transmission resource to the terminal.
  • the receiver 43 is configured to receive scheduling control information sent by the network node.
  • the transmitter 41 is further configured to send data on an uplink transmission resource of a first subframe based on the scheduling control information, where the first subframe is a downlink subframe.
  • the processor 42 is configured to control the receiver 43 to stop receiving data in the first subframe.
  • the receiver 43 is specifically configured to receive, in a second subframe, the scheduling control information sent by the network node, where the second subframe is a subframe before the first subframe.
  • the transmitter 41 is specifically configured to send the uplink data transmission request to the network node in a third subframe, where the third subframe is a subframe before the second subframe, an inter-subframe space between the third subframe and the first subframe is k, and k is a positive integer greater than 1.
  • the processor 42 may be a general purpose processor, including a CPU, an NP, or the like; and may alternatively be a DSP, an ASIC, an FPGA, or another programmable logic device, a discrete gate or transistor logic device, or a discrete hardware component.
  • the terminal may further include a memory.
  • the memory is coupled with the processor, and is configured to store an operating system, program code, and data.
  • the memory may include a random access memory (random access memory, RAM for short), or may include a nonvolatile memory (nonvolatile memory), for example, at least one magnetic disk storage.
  • the terminal according to this example may be configured to execute the technical solutions of the method example shown in FIG. 5 , implementation principles and technical effects thereof are similar to those in the method example, and details are not described herein again.
  • the program may be stored in a computer-readable storage medium.
  • the foregoing storage medium includes any medium that can store program code, such as a read-only memory (Read-Only Memory, ROM for short), a random access memory (random access memory, RAM for short), a magnetic disk, or an optical disc.

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  • Computer Networks & Wireless Communication (AREA)
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Claims (8)

  1. Procédé de transmission de données, comprenant :
    la réception (101), par un nœud de réseau, d'une demande de transmission de données de liaison montante envoyée par un terminal, la demande de transmission de données de liaison montante étant utilisée pour demander au nœud de réseau d'attribuer une ressource de transmission de liaison montante au terminal ;
    l'attribution (102, 202), par le nœud de réseau, d'une ressource de transmission de liaison montante d'une première sous-trame au terminal selon la demande de transmission de données de liaison montante, la première sous-trame étant une sous-trame de liaison descendante d'une structure de trame d'un mode duplex à répartition dans le temps, DRT ;
    l'envoi (103), par le nœud de réseau, d'informations de commande d'ordonnancement au terminal, les informations de commande d'ordonnancement étant utilisées pour donner instruction au terminal d'envoyer des données sur la ressource de transmission de liaison montante de la première sous-trame ;
    l'arrêt (104), par le nœud de réseau, de l'envoi de données dans la première sous-trame, et la réception, sur la ressource de transmission de liaison montante de la première sous-trame, de données envoyées par le terminal ;
    caractérisé par
    l'envoi (204), par le nœud de réseau, de premières informations de commande à un nœud de réseau dans une cellule voisine, les premières informations de commande étant utilisées pour donner instruction au nœud de réseau dans la cellule voisine d'arrêter d'envoyer des données dans la première sous-trame.
  2. Procédé selon la revendication 1, si une cellule dans laquelle se trouve le nœud de réseau est couverte par une macrocellule, le procédé comprenant en outre :
    l'envoi (205), par le nœud de réseau, de secondes informations de commande à un nœud de réseau dans la macrocellule, les secondes informations de commande étant utilisées pour donner instruction au nœud de réseau dans la macrocellule d'arrêter d'envoyer des données dans la première sous-trame.
  3. Procédé selon l'une quelconque des revendications 1 ou 2, l'envoi (103), par le nœud de réseau, d'informations de commande d'ordonnancement au terminal comprenant :
    l'envoi (203), par le nœud de réseau, des informations de commande d'ordonnancement au terminal dans une deuxième sous-trame, la deuxième sous-trame étant une sous-trame avant la première sous-trame.
  4. Procédé selon la revendication 3, la réception (101), par un nœud de réseau, d'une demande de transmission de données de liaison montante envoyée par un terminal comprenant :
    la réception (201), par le nœud de réseau dans une troisième sous-trame, de la demande de transmission de données de liaison montante envoyée par le terminal, la troisième sous-trame étant une sous-trame avant la deuxième sous-trame, et un espace inter-sous-trames entre la troisième sous-trame et la première sous-trame étant k ; et
    k étant un entier positif supérieur à 1.
  5. Appareil de transmission de données, comprenant :
    un module de réception (11), configuré pour recevoir une demande de transmission de données de liaison montante envoyée par un terminal, la demande de transmission de données de liaison montante étant utilisée pour demander à un nœud de réseau d'attribuer une ressource de transmission de liaison montante au terminal ;
    un module d'attribution (12), configuré pour attribuer une ressource de transmission de liaison montante d'une première sous-trame au terminal selon la demande de transmission de données de liaison montante, la première sous-trame étant une sous-trame de liaison descendante d'une structure de trame d'un mode duplex à répartition dans le temps, DRT ;
    un module d'envoi (13), configuré pour envoyer des informations de commande d'ordonnancement au terminal, les informations de commande d'ordonnancement étant utilisées pour donner instruction au terminal d'envoyer des données sur la ressource de transmission de liaison montante de la première sous-trame ;
    un module de traitement (14), configuré pour : commander le module d'envoi de sorte qu'il arrête d'envoyer des données dans la première sous-trame, et commander le module de réception de sorte qu'il reçoive, sur la ressource de transmission de liaison montante de la première sous-trame, des données envoyées par le terminal ; caractérisé en ce que
    le module d'envoi (13) est en outre configuré pour envoyer des premières informations de commande à un nœud de réseau dans une cellule voisine, les premières informations de commande étant utilisées pour donner instruction au nœud de réseau dans la cellule voisine d'arrêter d'envoyer des données dans la première sous-trame.
  6. Appareil selon la revendication 5, si la première sous-trame est une sous-trame de liaison descendante et une cellule dans laquelle se trouve l'appareil de transmission de données est couverte par une macrocellule, le module d'envoi (13) étant en outre configuré pour envoyer des secondes informations de commande à un nœud de réseau dans la macrocellule, les secondes informations de commande étant utilisées pour donner instruction au nœud de réseau dans la macrocellule d'arrêter d'envoyer des données dans la première sous-trame.
  7. Appareil selon l'une quelconque des revendications 5 ou 6, le module d'envoi (13) étant spécifiquement configuré pour envoyer les informations de commande d'ordonnancement au terminal dans une deuxième sous-trame, la deuxième sous-trame étant une sous-trame avant la première sous-trame.
  8. Appareil selon la revendication 7, le module de réception (11) étant spécifiquement configuré pour recevoir, dans une troisième sous-trame, la demande de transmission de données de liaison montante envoyée par le terminal, la troisième sous-trame étant une sous-trame avant la deuxième sous-trame, et un espace inter-sous-trames entre la troisième sous-trame et la première sous-trame étant k ; et
    k étant un entier positif supérieur à 1.
EP17788643.9A 2016-04-26 2017-04-12 Procédé et appareil de transmission de données Active EP3439402B1 (fr)

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CN201610266409.7A CN107318166B (zh) 2016-04-26 2016-04-26 数据传输方法和装置
PCT/CN2017/080234 WO2017185991A1 (fr) 2016-04-26 2017-04-12 Procédé et appareil de transmission de données

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US10785792B2 (en) * 2018-03-28 2020-09-22 Google Llc User device-initiated low-latency data transmissions
CN116647775B (zh) * 2023-07-27 2023-10-20 哈尔滨凯纳科技股份有限公司 一种用于二次供水泵站的远程数据传输终端

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EP3439402A4 (fr) 2019-03-27
US10750496B2 (en) 2020-08-18
CN107318166A (zh) 2017-11-03
EP3439402A1 (fr) 2019-02-06
US20190069292A1 (en) 2019-02-28
JP2019515548A (ja) 2019-06-06
WO2017185991A1 (fr) 2017-11-02
CN107318166B (zh) 2021-03-05
JP6804556B2 (ja) 2020-12-23
BR112018071953A2 (pt) 2019-02-05

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